Perhaps you should try some spelling variations:
nhung song » nhung cong, nhung bong, nhung chong
theo hien » theo chieu, thuc hien, theo tieu
hien hanh » dieu hanh
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
dung cua » dung luan, dung cho
van tuan » van ban, anh tuan
van quan » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo hien hanh - hanh dung cua nhung song ((van tuan) or (van quan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hien hanh - hanh dung cua nhung song ((van tuan) OR (van quan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo hien hanh - hanh dung cua nhung song ((van tuan) or (van quan)) cau*.